Return bad request status code if request body is malformed

[efcasado]

About

At the time of this writing, krakend-jsonschema returns a 500 - Internal Server Error in the following scenarios:

• When the request body is empty
• When the request body is a non-valid JSON data structure

This PR modifies the above behaviour to return a 400 - Bad Request status code in such scenarios.

[efcasado]

Sorry for approaching you, @kpacha, like this 😳 I only want to make sure this did not fall between the cracks since I opened it during summer vacation.

Also, curious to hear your thoughts and feedback.

Oh, and also thanks for the amazing work you are doing with this project (and krakend in general! 🙌).

[kpacha]

@efcasado thanks for your contribution!

We'll add a minor modification so the actual error gets propagated

Cheers

[alombarte]

Hola @efcasado,

Thank you for your pull request, the fix will be included in the next KrakenD release